Browsing School of Earth and Atmospheric Sciences (EAS) by Subject "Volcanic eruptions"
Now showing items 1-4 of 4
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Contact electrification and charge separation in volcanic plumes
(Georgia Institute of Technology, 2011-04-05)Volcanogenic lightning has a long documented history in the scientific field, though its origins are still poorly understood. The interactions leading to electrification of ash plumes is essentially a function of the ... -
An experimental evaluation of the role of water vapor and collisional energy on ash aggregation in explosive volcanic eruptions
(Georgia Institute of Technology, 2011-04-05)Eruption dynamics are sensitive to ash aggregation, and ash aggregates (e.g. accretionary lapilli) are commonly found in eruptive deposits, yet few experiments have been conducted on aggregation phenomena using natural ... -
Numerical study of the dynamic processes in volcanic eruptions: Bubble dynamics and volatiles diffusion
(Georgia Institute of Technology, 2017-04-06)Volcanic eruption releases gases and aerosols (e.g., sulfur compounds) to the atmosphere, impacting climate for up to several years. While most research efforts of volcanologists to date have been devoted to unraveling the ... -
The thermal evolution and dynamics of pyroclasts and pyroclastic density currents
(Georgia Institute of Technology, 2015-07-24)The thermal evolution of pyroclastic density currents (PDCs) is the result of entrainment of ambient air, particle concentration, and initial eruptive temperature, which all impact PDC dynamics and their hazards, such as ...